Polymer Electrolytes for Lithium-Ion Batteries

Résumé fourni par la source

A lithium-ion battery (LIB) functions based on the electrochemical dynamics of electrolytes with a wide range of electrodes having specified intercalation or conversion chemistries. The need for high-performance batteries has led to the exploration of alternative electrode materials that can boost the specific capacity and increase the operating potential window. Evidently, state-of-the-art electrolyte systems have not been able to meet the requirements of the advancement trajectory by the adoption of new electrode materials as they are not compatible with them for stable performance. Therefore, the focus on the investigation of unconventional electrolyte systems that can moderate with the stringent anode and cathode chemistry has led to the exploration of new classes of electrolyte systems. In this regard, polymer electrolytes have shown strong candidacy for replacing conventional non-aqueous liquid electrolytes in a LIB in terms of non-flammability, mechanical robustness, ion-conduction mechanism, and compatibility with a wide range of electrodes (anodes and cathodes). This chapter provides a brief overview of the ion-transport mechanisms, electrochemical properties, preparation techniques, and merits–demerits of different types of polymer electrolytes like solvent-free polymer electrolytes, gel polymer electrolytes, and composite polymer electrolytes. Finally, the scope of future development and advancement of polymer electrolytes is discussed in the context of next-generation high-energy-density LIBs that are safe.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.